Rockford Fosgate M5-1000X1 1,000 Watt Mono Element Ready™ Amplifier
Rockford Fosgate M5-1000X1 1000 Watt Mono IPX6 Element Ready Marine Subwoofer Amplifier
A marine grade 1000W monoblock Class-BD subwoofer amplifier with IPX6 water intrusion rating, delivering 750W x 1 at 2-ohm and 1000W dynamic at 1-ohm (CTA-2006 rated). Features C.L.E.A.N. gain calibration, NOMAD speaker protection, P.O.W.E.R. supply, MEHSA4 heat management, infrasonic filter, and balanced differential inputs. Greater than 80% efficiency. Engineered in the USA. Backed by a 2 year warranty.
Product Overview
The Rockford Fosgate M5-1000X1 is a 1000W monoblock Class-BD marine subwoofer amplifier purpose-built for demanding outdoor environments. IPX6 rated and fully Element Ready, it is protected against dust, UV radiation, temperature extremes, water jets from any direction, corrosion, and vibration throughout its service life.
As a dedicated single-channel subwoofer amplifier, the M5-1000X1 operates across a frequency range of 30Hz to 245Hz. Rated continuous power is 500W x 1 at 4-ohm, 750W x 1 at 2-ohm, and 750W x 1 at 1-ohm, all at less than 1.0% THD+N and CTA-2006 certified. Dynamic power via PVC/PowerCube reaches 525W at 4-ohm, 900W at 2-ohm, and 1000W at 1-ohm. Class-BD topology delivers greater than 80% efficiency - significantly higher than the 20-60% typical of traditional Class-A/B amplifier designs - and less than 0.1% THD+N at 1 watt.
C.L.E.A.N. (Calibrated Level Eliminates Audible Noise) input and output clip indicators guide precise gain calibration at setup. NOMAD real-time protection guards against shorted speaker wires and dangerously low impedances. MEHSA4 reduces MOSFET temperatures, lowers distortion, and extends output device life. The PRESET feature eliminates manual setup when used with compatible Rockford Fosgate UTV audio kits. An infrasonic filter at 30Hz protects subwoofers from damaging low-frequency excursion. Chassis isolation from mounting points reduces vehicle noise introduction into the audio signal.
Features & Benefits
Class-BD Monoblock - Greater Than 80% Efficiency: The M5-1000X1 uses Class-BD topology throughout its single subwoofer channel, delivering greater than 80% efficiency versus the 20-60% typical of traditional Class-A/B monoblock amplifiers. This means more power delivered to the subwoofer with less heat generated and less current drawn from the vessel's charging system.
C.L.E.A.N. Technology - Precision Gain Calibration: C.L.E.A.N. (Calibrated Level Eliminates Audible Noise) is a patented circuit with dedicated input and output clip indicator LEDs, making it straightforward to match the source unit output to the amplifier's input sensitivity for maximum output with minimum distortion.
P.O.W.E.R. Supply and Constant Power Circuit: The P.O.W.E.R. supply continues to generate above rated output as voltage increases. The patented Constant Power circuit topology provides instantaneous power delivery across varying impedance loads, boosting output by up to 25%.
Infrasonic Filter - Subwoofer Protection at 30Hz: The infrasonic filter on the output channel attenuates frequencies below 30Hz at 12dB/octave, protecting subwoofer drivers from damaging excursion caused by subsonic content that cannot be heard but can overstress the driver at high volume.
NOMAD Speaker Protection - Real-Time Monitoring: NOMAD is a real-time analog protection circuit that continuously monitors for shorted speaker wires and dangerously low speaker impedances, protecting both the amplifier and connected subwoofer from damage.
MEHSA4 Heat Management and Chassis Isolation: MEHSA4 (Maximum Efficiency Heat Sink Application) reduces MOSFET operating temperatures, lowers distortion, increases durability, and extends output device life. Chassis isolation from mounting points reduces the introduction of vehicle electrical noise into the audio signal.
IPX6 Element Ready - Built for Marine and Outdoor Environments: IPX6 water intrusion rating confirms protection against powerful jets of water from any direction. Element Ready construction with integrated harness and panel seals protects all components throughout the service life of the amplifier.
RATS Tested and Engineered in the USA: Each M5-1000X1 is quality and performance tested through Rockford Fosgate's proprietary RATS (Rockford Automated Testing System). Designed and engineered in the USA.
Technical Specs
| Specification | Detail |
|---|---|
| SKU | M5-1000X1 |
| Number of Channels | 1 (Monoblock) |
| Total Power | 1000W |
| Rated Power - 4-ohm (CTA-2006, less than 1.0% THD+N) | 500W x 1 |
| Rated Power - 2-ohm (CTA-2006, less than 1.0% THD+N) | 750W x 1 |
| Rated Power - 1-ohm (CTA-2006, less than 1.0% THD+N) | 750W x 1 |
| Dynamic Power - 4-ohm (CTA-2006 PVC/PowerCube) | 525W x 1 |
| Dynamic Power - 2-ohm (CTA-2006 PVC/PowerCube) | 900W x 1 |
| Dynamic Power - 1-ohm (CTA-2006 PVC/PowerCube) | 1000W x 1 |
| Circuit Topology | Class-BD |
| Bridgeable | No |
| Frequency Response | 30 Hz - 245 Hz |
| THD + Noise | Less than 0.1% at 1 Watt |
| Input Sensitivity | 150mVrms - 12Vrms |
| Efficiency | Greater than 80% |
| Signal Input | Low-Level: 2 x RCA / High-Level: 4-Pin Molex |
| Tone Controls | Sub: 0-18dB at 45Hz |
| Low-Pass Crossover | 50 Hz - 250 Hz at 12dB/Octave Butterworth |
| Infrasonic Filter | 30 Hz at 12dB/Octave Butterworth |
| Power Wire Gauge | 8 AWG |
| Power Input Connector | Compression Terminal Block |
| Speaker Wire Gauge | 16 AWG |
| Speaker Output Connector | 4-Pin Molex |
| Cooling | Convection |
| Heatsink | Extruded Aluminium (Focused Mass) |
| Operating Voltage | 9 - 16 VDC |
| Recommended Fuse (not included) | 70A MAXI (Littelfuse 0299070) |
| Average Current Draw at 13.8V Music | 4-ohm: 23A / 2-ohm: 53A / 1-ohm: 64A |
| Max Current Draw at 13.8V Sinewave | 4-ohm: 46A / 2-ohm: 75A / 1-ohm: 88A |
| Water Intrusion Rating | IPX6 |
| Visual Indicators | Power: Blue / Protect: Red / Input Clip: Red / Output Clip: Blue/Red |
| Dimensions (H x W x D) | 42.8 x 108 x 213mm (1.7 x 4.25 x 8.41 inch) |
| Shipping Weight | 2.7kg |
| CTA-2006 Compliant | Yes |
| Quality Testing | RATS (Rockford Automated Testing System) |
| Warranty | 2 Years |
Compatible With / Goes Well With
The M5-1000X1 is a dedicated monoblock subwoofer amplifier suited to marine watercraft, pontoon boats, wakeboard boats, and powersports vehicles requiring a high-output, single-channel subwoofer drive. It is the recommended dedicated subwoofer amplifier for pairings with Rockford Fosgate M2 marine subwoofers.
Goes Well With:
- M212S4 - Rockford Fosgate M2 series 12 inch 4-ohm marine subwoofer handling 300W RMS, an ideal pairing for the M5-1000X1 at 2-ohm or 4-ohm rated output
- M210S4B - M2 series 10 inch 4-ohm marine subwoofer in black for a compact pairing with the M5-1000X1
- M5-800X4 - Companion M5 series 4-channel amplifier for full marine system builds pairing the M5-1000X1 on subwoofer duty with the M5-800X4 powering full-range speakers
- M5-1500X5 - 5-channel alternative for builds where a single amplifier covering both full-range and subwoofer channels is preferred over separate units
- DSR1 - Rockford Fosgate Digital Signal Processor for advanced signal processing ahead of the M5-1000X1
- RFW8R / RFW8B - Rockford Fosgate 8 AWG marine amplifier wiring kits (red or black) matched to the M5-1000X1's 8 AWG power wire requirement
Frequently Asked Questions
What is the difference between the M5-1000X1 and the M5-800X4?
The M5-1000X1 is a monoblock subwoofer amplifier with a single Class-BD channel delivering up to 750W RMS at 2-ohm, designed exclusively to drive a subwoofer. Its frequency response is limited to 30Hz-245Hz and it features only a low-pass crossover and infrasonic filter. The M5-800X4 is a 4-channel full-range amplifier delivering 100W x 4 at 4-ohm across a 10Hz-50kHz frequency response, suited to powering speakers rather than a subwoofer. In most full marine audio builds, both amplifiers are used together.
What subwoofer impedance gives the best output from the M5-1000X1?
The M5-1000X1 delivers its highest rated continuous output at 2-ohm (750W RMS) and its highest dynamic output at 1-ohm (1000W dynamic). At 4-ohm, rated continuous output is 500W RMS. For the best balance of output and reliability in a marine environment, pairing the M5-1000X1 with a 2-ohm or dual voice coil subwoofer wired to 2-ohm is recommended.
Is the M5-1000X1 suitable for saltwater marine environments?
Yes. The M5-1000X1 carries IPX6 water intrusion rating and full Element Ready certification with integrated harness and panel seals, protecting it against water jets from any direction, UV radiation, corrosion, dust, vibration, and temperature extremes. It is designed for both freshwater and saltwater marine applications.
What does the infrasonic filter do and should I enable it?
The infrasonic filter attenuates frequencies below 30Hz at 12dB/octave on the output channel. Subsonic content below this threshold cannot be heard but can cause excessive cone excursion in subwoofer drivers at high output levels, risking damage over time. Enabling the infrasonic filter is recommended for most marine subwoofer installations, particularly at high volumes or when the source material may include subsonic content.
What fuse is required for the M5-1000X1 and is it included?
The M5-1000X1 requires a 70A MAXI fuse (Littelfuse part number 0299070). Note this is a 70A fuse - different from the 80A MAXI used on the M5-800X4 and M5-1500X5. The fuse is not included in the box and must be sourced separately. Install it as close to the battery as possible in the 8 AWG power supply line.
Original: $755.22
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$264.33Product Information
Product Information
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Description
Rockford Fosgate M5-1000X1 1000 Watt Mono IPX6 Element Ready Marine Subwoofer Amplifier
A marine grade 1000W monoblock Class-BD subwoofer amplifier with IPX6 water intrusion rating, delivering 750W x 1 at 2-ohm and 1000W dynamic at 1-ohm (CTA-2006 rated). Features C.L.E.A.N. gain calibration, NOMAD speaker protection, P.O.W.E.R. supply, MEHSA4 heat management, infrasonic filter, and balanced differential inputs. Greater than 80% efficiency. Engineered in the USA. Backed by a 2 year warranty.
Product Overview
The Rockford Fosgate M5-1000X1 is a 1000W monoblock Class-BD marine subwoofer amplifier purpose-built for demanding outdoor environments. IPX6 rated and fully Element Ready, it is protected against dust, UV radiation, temperature extremes, water jets from any direction, corrosion, and vibration throughout its service life.
As a dedicated single-channel subwoofer amplifier, the M5-1000X1 operates across a frequency range of 30Hz to 245Hz. Rated continuous power is 500W x 1 at 4-ohm, 750W x 1 at 2-ohm, and 750W x 1 at 1-ohm, all at less than 1.0% THD+N and CTA-2006 certified. Dynamic power via PVC/PowerCube reaches 525W at 4-ohm, 900W at 2-ohm, and 1000W at 1-ohm. Class-BD topology delivers greater than 80% efficiency - significantly higher than the 20-60% typical of traditional Class-A/B amplifier designs - and less than 0.1% THD+N at 1 watt.
C.L.E.A.N. (Calibrated Level Eliminates Audible Noise) input and output clip indicators guide precise gain calibration at setup. NOMAD real-time protection guards against shorted speaker wires and dangerously low impedances. MEHSA4 reduces MOSFET temperatures, lowers distortion, and extends output device life. The PRESET feature eliminates manual setup when used with compatible Rockford Fosgate UTV audio kits. An infrasonic filter at 30Hz protects subwoofers from damaging low-frequency excursion. Chassis isolation from mounting points reduces vehicle noise introduction into the audio signal.
Features & Benefits
Class-BD Monoblock - Greater Than 80% Efficiency: The M5-1000X1 uses Class-BD topology throughout its single subwoofer channel, delivering greater than 80% efficiency versus the 20-60% typical of traditional Class-A/B monoblock amplifiers. This means more power delivered to the subwoofer with less heat generated and less current drawn from the vessel's charging system.
C.L.E.A.N. Technology - Precision Gain Calibration: C.L.E.A.N. (Calibrated Level Eliminates Audible Noise) is a patented circuit with dedicated input and output clip indicator LEDs, making it straightforward to match the source unit output to the amplifier's input sensitivity for maximum output with minimum distortion.
P.O.W.E.R. Supply and Constant Power Circuit: The P.O.W.E.R. supply continues to generate above rated output as voltage increases. The patented Constant Power circuit topology provides instantaneous power delivery across varying impedance loads, boosting output by up to 25%.
Infrasonic Filter - Subwoofer Protection at 30Hz: The infrasonic filter on the output channel attenuates frequencies below 30Hz at 12dB/octave, protecting subwoofer drivers from damaging excursion caused by subsonic content that cannot be heard but can overstress the driver at high volume.
NOMAD Speaker Protection - Real-Time Monitoring: NOMAD is a real-time analog protection circuit that continuously monitors for shorted speaker wires and dangerously low speaker impedances, protecting both the amplifier and connected subwoofer from damage.
MEHSA4 Heat Management and Chassis Isolation: MEHSA4 (Maximum Efficiency Heat Sink Application) reduces MOSFET operating temperatures, lowers distortion, increases durability, and extends output device life. Chassis isolation from mounting points reduces the introduction of vehicle electrical noise into the audio signal.
IPX6 Element Ready - Built for Marine and Outdoor Environments: IPX6 water intrusion rating confirms protection against powerful jets of water from any direction. Element Ready construction with integrated harness and panel seals protects all components throughout the service life of the amplifier.
RATS Tested and Engineered in the USA: Each M5-1000X1 is quality and performance tested through Rockford Fosgate's proprietary RATS (Rockford Automated Testing System). Designed and engineered in the USA.
Technical Specs
| Specification | Detail |
|---|---|
| SKU | M5-1000X1 |
| Number of Channels | 1 (Monoblock) |
| Total Power | 1000W |
| Rated Power - 4-ohm (CTA-2006, less than 1.0% THD+N) | 500W x 1 |
| Rated Power - 2-ohm (CTA-2006, less than 1.0% THD+N) | 750W x 1 |
| Rated Power - 1-ohm (CTA-2006, less than 1.0% THD+N) | 750W x 1 |
| Dynamic Power - 4-ohm (CTA-2006 PVC/PowerCube) | 525W x 1 |
| Dynamic Power - 2-ohm (CTA-2006 PVC/PowerCube) | 900W x 1 |
| Dynamic Power - 1-ohm (CTA-2006 PVC/PowerCube) | 1000W x 1 |
| Circuit Topology | Class-BD |
| Bridgeable | No |
| Frequency Response | 30 Hz - 245 Hz |
| THD + Noise | Less than 0.1% at 1 Watt |
| Input Sensitivity | 150mVrms - 12Vrms |
| Efficiency | Greater than 80% |
| Signal Input | Low-Level: 2 x RCA / High-Level: 4-Pin Molex |
| Tone Controls | Sub: 0-18dB at 45Hz |
| Low-Pass Crossover | 50 Hz - 250 Hz at 12dB/Octave Butterworth |
| Infrasonic Filter | 30 Hz at 12dB/Octave Butterworth |
| Power Wire Gauge | 8 AWG |
| Power Input Connector | Compression Terminal Block |
| Speaker Wire Gauge | 16 AWG |
| Speaker Output Connector | 4-Pin Molex |
| Cooling | Convection |
| Heatsink | Extruded Aluminium (Focused Mass) |
| Operating Voltage | 9 - 16 VDC |
| Recommended Fuse (not included) | 70A MAXI (Littelfuse 0299070) |
| Average Current Draw at 13.8V Music | 4-ohm: 23A / 2-ohm: 53A / 1-ohm: 64A |
| Max Current Draw at 13.8V Sinewave | 4-ohm: 46A / 2-ohm: 75A / 1-ohm: 88A |
| Water Intrusion Rating | IPX6 |
| Visual Indicators | Power: Blue / Protect: Red / Input Clip: Red / Output Clip: Blue/Red |
| Dimensions (H x W x D) | 42.8 x 108 x 213mm (1.7 x 4.25 x 8.41 inch) |
| Shipping Weight | 2.7kg |
| CTA-2006 Compliant | Yes |
| Quality Testing | RATS (Rockford Automated Testing System) |
| Warranty | 2 Years |
Compatible With / Goes Well With
The M5-1000X1 is a dedicated monoblock subwoofer amplifier suited to marine watercraft, pontoon boats, wakeboard boats, and powersports vehicles requiring a high-output, single-channel subwoofer drive. It is the recommended dedicated subwoofer amplifier for pairings with Rockford Fosgate M2 marine subwoofers.
Goes Well With:
- M212S4 - Rockford Fosgate M2 series 12 inch 4-ohm marine subwoofer handling 300W RMS, an ideal pairing for the M5-1000X1 at 2-ohm or 4-ohm rated output
- M210S4B - M2 series 10 inch 4-ohm marine subwoofer in black for a compact pairing with the M5-1000X1
- M5-800X4 - Companion M5 series 4-channel amplifier for full marine system builds pairing the M5-1000X1 on subwoofer duty with the M5-800X4 powering full-range speakers
- M5-1500X5 - 5-channel alternative for builds where a single amplifier covering both full-range and subwoofer channels is preferred over separate units
- DSR1 - Rockford Fosgate Digital Signal Processor for advanced signal processing ahead of the M5-1000X1
- RFW8R / RFW8B - Rockford Fosgate 8 AWG marine amplifier wiring kits (red or black) matched to the M5-1000X1's 8 AWG power wire requirement
Frequently Asked Questions
What is the difference between the M5-1000X1 and the M5-800X4?
The M5-1000X1 is a monoblock subwoofer amplifier with a single Class-BD channel delivering up to 750W RMS at 2-ohm, designed exclusively to drive a subwoofer. Its frequency response is limited to 30Hz-245Hz and it features only a low-pass crossover and infrasonic filter. The M5-800X4 is a 4-channel full-range amplifier delivering 100W x 4 at 4-ohm across a 10Hz-50kHz frequency response, suited to powering speakers rather than a subwoofer. In most full marine audio builds, both amplifiers are used together.
What subwoofer impedance gives the best output from the M5-1000X1?
The M5-1000X1 delivers its highest rated continuous output at 2-ohm (750W RMS) and its highest dynamic output at 1-ohm (1000W dynamic). At 4-ohm, rated continuous output is 500W RMS. For the best balance of output and reliability in a marine environment, pairing the M5-1000X1 with a 2-ohm or dual voice coil subwoofer wired to 2-ohm is recommended.
Is the M5-1000X1 suitable for saltwater marine environments?
Yes. The M5-1000X1 carries IPX6 water intrusion rating and full Element Ready certification with integrated harness and panel seals, protecting it against water jets from any direction, UV radiation, corrosion, dust, vibration, and temperature extremes. It is designed for both freshwater and saltwater marine applications.
What does the infrasonic filter do and should I enable it?
The infrasonic filter attenuates frequencies below 30Hz at 12dB/octave on the output channel. Subsonic content below this threshold cannot be heard but can cause excessive cone excursion in subwoofer drivers at high output levels, risking damage over time. Enabling the infrasonic filter is recommended for most marine subwoofer installations, particularly at high volumes or when the source material may include subsonic content.
What fuse is required for the M5-1000X1 and is it included?
The M5-1000X1 requires a 70A MAXI fuse (Littelfuse part number 0299070). Note this is a 70A fuse - different from the 80A MAXI used on the M5-800X4 and M5-1500X5. The fuse is not included in the box and must be sourced separately. Install it as close to the battery as possible in the 8 AWG power supply line.
